HARDWARE
The Torsional Deflection of Circular Sections hardware is high-quality teaching equipment which helps explain the use of the general torsion theory, shear modulus and the polar moment of inertia. It consists of two chucks on a backboard which hold a test specimen. To perform experiments students apply torque to the specimen using a mechanism on one chuck. A protractor scale on this chuck measures angular movement. The other chuck traverses the backboard to vary the specimen test length, and has a load cell which measures torque.
The Torsional Deflection of Circular Sections hardware includes an angular transducer for use with an Automatic Data Acquisition System (STR2000, available separately). It also includes a lead to connect the load cell to a Digital Force Display (STR1a), test specimens, a rule, a vernier, a lecturer guide and a student guide.
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VIRTUAL EXPERIMENTS
The Torsional Deflection of Circular Sections Virtual Experiments Software enables computer simulation of experiments working with or without the Structures teaching hardware. It expands the scope of experimentation beyond the limits of the hardware. In particular, it allows students to examine other section shapes in addition to circular, including round, square, box and triangular. It also allows students to change the shear modulus of the specimen material.
To further help students' understanding the software also displays an angular deflection diagram during experiments. Students can visualise, tabulate and graph data, reducing the time required for students to obtain, process and present results. This allows students to realistically, efficiently and conveniently investigate and compare the properties of a wide selection of specimens under different applied torsional loads.
The Virtual Experiments Software is available in a variety of multi-user and networked options, as well as single-user format.
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